ECMAScript Job Vacancies

326 to 350 of 3,175 ECMAScript Jobs

Senior Full Stack Web Developer - ONSITE

East Anglia, UK
Hybrid / WFH Options
Profile 29
Developing website features and fixing bugs using C#, Entity Framework, Azure Service Bus and SQL Server Writing unit and integration tests using NUnit Styling website changes in CSS Developing JavaScript code using frameworks such as Vue Attending scrum meetings and briefings with project owners and peers Writing SQL scripts to modify database schema in SQL Server 2014 Required Recent legacy … essential) ASP.NET 4.6+ MVC 5 C# 6 including advanced language features e.g., generics, lambdas, delegates Design Patterns and SOLID Principles Entity Framework 6+ SQL Server 2014+ TDD/NUnit Javascript/JQuery/AJAX HTML5/CSS3 Desirable ASP.NET Core Azure Service Bus Entity Framework Core Vue Agile methodologies/Scrum Automated browser testing/SpecFlow/Selenium SignalR ECMAScript6 … .com/privacy) Profile 29 recruitment keywords: senior web developer lead web developer London Essex ASP.NET MVC MVC5 C# 6 Design Patterns SOLID Entity Framework SQL Server TDD NUnit Javascript Jquery AJAX HTML5 CSS finance fintech JBRP1_UKTJ More ❯
Posted:

Senior Full Stack Web Developer - ONSITE

Loughton, Essex, England, United Kingdom
Hybrid / WFH Options
Profile 29
Developing website features and fixing bugs using C#, Entity Framework, Azure Service Bus and SQL Server Writing unit and integration tests using NUnit Styling website changes in CSS Developing JavaScript code using frameworks such as Vue Attending scrum meetings and briefings with project owners and peers Writing SQL scripts to modify database schema in SQL Server 2014 Required Recent legacy … essential) ASP.NET 4.6+ MVC 5 C# 6 including advanced language features e.g., generics, lambdas, delegates Design Patterns and SOLID Principles Entity Framework 6+ SQL Server 2014+ TDD/NUnit Javascript/JQuery/AJAX HTML5/CSS3 Desirable ASP.NET Core Azure Service Bus Entity Framework Core Vue Agile methodologies/Scrum Automated browser testing/SpecFlow/Selenium SignalR ECMAScript6 … .com/privacy) Profile 29 recruitment keywords: senior web developer lead web developer London Essex ASP.NET MVC MVC5 C# 6 Design Patterns SOLID Entity Framework SQL Server TDD NUnit Javascript Jquery AJAX HTML5 CSS finance fintech More ❯
Employment Type: Full-Time
Salary: £70,000 - £120,000 per annum
Posted:

Senior Full Stack Web Developer - ONSITE

loughton, east anglia, United Kingdom
Hybrid / WFH Options
Profile 29
Developing website features and fixing bugs using C#, Entity Framework, Azure Service Bus and SQL Server Writing unit and integration tests using NUnit Styling website changes in CSS Developing JavaScript code using frameworks such as Vue Attending scrum meetings and briefings with project owners and peers Writing SQL scripts to modify database schema in SQL Server 2014 Required Recent legacy … essential) ASP.NET 4.6+ MVC 5 C# 6 including advanced language features e.g., generics, lambdas, delegates Design Patterns and SOLID Principles Entity Framework 6+ SQL Server 2014+ TDD/NUnit Javascript/JQuery/AJAX HTML5/CSS3 Desirable ASP.NET Core Azure Service Bus Entity Framework Core Vue Agile methodologies/Scrum Automated browser testing/SpecFlow/Selenium SignalR ECMAScript6 … .com/privacy) Profile 29 recruitment keywords: senior web developer lead web developer London Essex ASP.NET MVC MVC5 C# 6 Design Patterns SOLID Entity Framework SQL Server TDD NUnit Javascript Jquery AJAX HTML5 CSS finance fintech JBRP1_UKTJ More ❯
Posted:

Senior Full Stack Web Developer - ONSITE

chelmsford, east anglia, united kingdom
Hybrid / WFH Options
Profile 29
Developing website features and fixing bugs using C#, Entity Framework, Azure Service Bus and SQL Server Writing unit and integration tests using NUnit Styling website changes in CSS Developing JavaScript code using frameworks such as Vue Attending scrum meetings and briefings with project owners and peers Writing SQL scripts to modify database schema in SQL Server 2014 Required Recent legacy … essential) ASP.NET 4.6+ MVC 5 C# 6 including advanced language features e.g., generics, lambdas, delegates Design Patterns and SOLID Principles Entity Framework 6+ SQL Server 2014+ TDD/NUnit Javascript/JQuery/AJAX HTML5/CSS3 Desirable ASP.NET Core Azure Service Bus Entity Framework Core Vue Agile methodologies/Scrum Automated browser testing/SpecFlow/Selenium SignalR ECMAScript6 … .com/privacy) Profile 29 recruitment keywords: senior web developer lead web developer London Essex ASP.NET MVC MVC5 C# 6 Design Patterns SOLID Entity Framework SQL Server TDD NUnit Javascript Jquery AJAX HTML5 CSS finance fintech JBRP1_UKTJ More ❯
Posted:

Senior Full Stack Web Developer - ONSITE

Loughton, Essex, South East, United Kingdom
Hybrid / WFH Options
Profile 29
Developing website features and fixing bugs using C#, Entity Framework, Azure Service Bus and SQL Server Writing unit and integration tests using NUnit Styling website changes in CSS Developing JavaScript code using frameworks such as Vue Attending scrum meetings and briefings with project owners and peers Writing SQL scripts to modify database schema in SQL Server 2014 Required Recent legacy … essential) ASP.NET 4.6+ MVC 5 C# 6 including advanced language features e.g., generics, lambdas, delegates Design Patterns and SOLID Principles Entity Framework 6+ SQL Server 2014+ TDD/NUnit Javascript/JQuery/AJAX HTML5/CSS3 Desirable ASP.NET Core Azure Service Bus Entity Framework Core Vue Agile methodologies/Scrum Automated browser testing/SpecFlow/Selenium SignalR ECMAScript6 … .com/privacy) Profile 29 recruitment keywords: senior web developer lead web developer London Essex ASP.NET MVC MVC5 C# 6 Design Patterns SOLID Entity Framework SQL Server TDD NUnit Javascript Jquery AJAX HTML5 CSS finance fintech More ❯
Employment Type: Permanent, Work From Home
Posted:

Backend Software Developer (TS/SCI) with Security Clearance

Springfield, Virginia, United States
IntelliBridge
requirements Utilize industry standard tools such as Gitlab, Jira and confluence for code version control, project management, product requirements, and user documentation Contribute to the deployment of Python and JavaScript while utilizing the Django web framework for the backends and React for developing the client facing portion of the application Create, extract, transform, and load (ETL) pipelines using Hadoop and … for military personnel Required Qualifications: Bachelor's degree in related field preferred Active TS/SCI Required Preferred Qualifications: Windows 7/10, MS Project Apache Airflow Python, Java, JavaScript, React, Flask, HTML, CSS, SQL, R, Docker, Kubernetes, HDFS, Postgres, Linux AutoCAD JIRA, Gitlab, Confluence Also looking for a Senior Developer at a higher compensation More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Marklogic Developer (SME) with Security Clearance

Reston, Virginia, United States
RedKey Solutions
code and data within various technology initiatives, operating within a DevOps framework. Key Responsibilities: Design and develop solutions that integrate Marklogic with existing enterprise platforms and systems. Develop XQuery, JavaScript, and REST modules on the Marklogic technology stack. Develop entity models and utilize the Marklogic library to support Governance, Risk, and Compliance (GRC) initiatives. Participate in software programming initiatives to … support innovation and enhancement using HTML, CSS, JavaScript, Java, Python, SpringBoot, and Hibernate. Develop and direct software system validation and testing methods using JUnit and Katalon. Create and integrate custom software solutions to leverage automated deployment technologies. Prototype, develop, and deploy solutions within commercial cloud environments leveraging infrastructure platform services. Collaborate closely with team members, Product Owners, and Scrum Masters … oriented architecture applications. Solid understanding of Object-Oriented Design and Design Patterns. Experience implementing the Marklogic Java-client-API within an enterprise application. Strong knowledge of XQuery, FLWOR queries, JavaScript, Marklogic, SPARQL, RDF data, XML Data, triple-stores, and XML Processing. Experience developing Marklogic Entity Models and building Marklogic data hubs. Proficiency with Unix/Shell scripting. In-depth experience More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Web Developer with Security Clearance

Chantilly, Virginia, United States
Hybrid / WFH Options
Gridiron IT Solutions
Onsite Remote Work: No Job Description Gridiron IT is seeking a Ruby on Rails Web Developer to act as a member of an AGILE development team working with HTML5, JavaScript, Bootstrap, CSS, C#.NET, SQL, Ruby on Rails, Artificial Intelligence, and Amazon Web Services to develop business applications in support of a government customer. The developer will collaborate with analysts, project … technical changes in the application. Qualifications • 4+ years relevant web development experience • Experience with Ruby on Rails • CompTIA Security+ Certification • Experience with basic web programming languages such as HTML, JavaScript, and CSS • Experience employing AWS cloud services to create cloud-native applications • Knowledge of web development principals, techniques, languages, and standard programming styles and conventions • Bachelor's Degree or higher More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Junior Full Stack Developer

Fareham, Hampshire, South East, United Kingdom
Develop
award-winning Fareham office, with some flexibility available once you've settled in. Key Responsibilities Develop backend functionality using Django and Python Build and style responsive UI components using JavaScript (TypeScript), HTML, and SCSS Collaborate in an agile team and contribute to sprint cycles Maintain high code quality and participate in reviews Work across both web and desktop applications What … They're Looking For 1-2 years of commercial experience Solid experience with Django in production environments Full stack development skills (JavaScript, HTML, CSS/SCSS) Exposure to SQL , REST APIs , and Git workflows Strong communication skills and eagerness to learn Bonus if you've worked with Docker, CI/CD, or cloud platforms What You Will Get: Not just More ❯
Employment Type: Permanent
Salary: £45,000
Posted:

AI Solution Architect (AI Agents, Retail / eCommerce)

Central London, London, United Kingdom
Hybrid / WFH Options
Staffworx Limited
optimize RESTful and GraphQL APIs to facilitate AI-driven interactions. Utilize AWS services (Lambda, S3, API Gateway, SageMaker, DynamoDB, ECS, etc.) to deploy scalable AI solutions. Implement Full Stack JavaScript (Node.js, React.js, Express, TypeScript, Next.js, etc.) applications to support AI-driven interfaces. Work closely with data scientists and ML engineers to integrate machine learning models into cloud-native applications. Ensure … in solution architecture with a focus on AI, APIs, and cloud technologies. Strong hands-on experience with AWS services related to AI/ML and serverless computing. Proficiency in JavaScript, TypeScript, Node.js, React.js, and Express.js for building full-stack applications. Experience with AI/ML frameworks such as TensorFlow, PyTorch, OpenAI API, or LangChain. Knowledge of microservices architecture, containerization (Docker More ❯
Employment Type: Contract, Work From Home
Posted:

Software Engineer (SME) with Security Clearance

Reston, Virginia, United States
RedKey Solutions
Develop, prototype, and deploy solutions within Commercial Cloud Solutions using Infrastructure platform services. Participate in software programming initiatives to support innovation and enhancement, utilizing technologies such as Python, Java, JavaScript, SpringBoot, Hibernate, and Angular. Independently demonstrate proposed solutions to customers, then iterate based on feedback. Collaborate closely with team members, Product Owners, and Scrum Masters to ensure alignment and implementation … Azure). Demonstrated ability to independently demonstrate developed solutions and update based on customer feedback. Proficiency in common Agile practices, service-oriented environments, and development practices. Expertise in Java, JavaScript, and Angular. Extensive experience with the software development lifecycle and delivering within DevOps toolsets/practices. Direct experience using software testing performance tools like Junit. Experience working in an Agile More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Full Stack Developer with Security Clearance

Washington, Washington DC, United States
Ignitec Inc
including version and platform upgrades. Develop in an AWS cloud environment using cutting edge technology. Responsible for the development of an application that is uses Java (JEE Development) Angular, JavaScript/Application Development, PostgreSQL, Sprintboot and Tomcat. This role is approved for Hybrid support, Flexible for occasional telework - must be local to work location QUALIFICATIONS Required Qualifications Active/Current … testing, maintenance, quality assurance, troubleshooting and/or upgrading of software systems. At least Two (2) or more years of experience in the following skillset: Java (JEE Development) Strong JavaScript/Ajax Application Development Angular version 2 or above Spring Boot, Spring Data JPA and Spring Security Tomcat PostgreSQL GIT LAB experience Experience in Test Driven Development JUNIT experience Desired More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Front-End Software Developer

London, United Kingdom
Hybrid / WFH Options
RedTech Recruitment Ltd
first class STEM degree and at least AAB at A Level (or equivalent) Must be proficient in either TypeScript or React Other highly relevant technologies which would be beneficial: JavaScript, Vue, Node, Yarn, Kotlin, Swift Strong problem-solving ability Natural ability to quickly pick up and learn new technologies Responsibilities for Front-End Software Developer Design and refine user interfaces … of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. Keywords – Computer Science/C/Java/Python/C#/JavaScript/Go/Golang/Kotlin/Docker/Programmer/Test Engineer/Software Engineer/Software Developer/Programming/Coding/programmer/Coder Ph.D./Mathematics More ❯
Employment Type: Permanent
Salary: £45000 - £70000/annum Excellent Benefits
Posted:

Fullstack with C# Dot net HTML Web Software Developer

Basildon, Essex
Hybrid / WFH Options
Nexus Jobs Limited
Developers to hold a degree in Computer Science or a related field. Successful Web Developers should have sound knowledge and experience in different programming applications. C#, Asp.net/Core, JavaScript, HTML, CSS, MVC and JSON are required core skills. Role Function: Candidates should be able to demonstrate strong ability to work independently and as part of a team building websites … from the ground up in C#, MVC, Asp.net and Asp.net core. The successful candidate should have a good command of C#, HTML, CSS, JavaScript, JSON & Bootstrap. Exposure to any UI binding framework such as Vue.js, AngularJS, React, and Knockout would be beneficial. Additionally, the candidate should be comfortable using IIS. Full understanding of the MVC pattern, REST APIs and asp.net More ❯
Employment Type: Permanent
Posted:

Full Stack Developer with Security Clearance

Annapolis Junction, Maryland, United States
SCD Information Technology
application. Address user issues, fix bugs, and improve system performance. Adapt to a fast-paced, agile work environment. Utilize a tech stack that includes AWS, C2S, React, Angular, Python, JavaScript, TypeScript, and Docker. Manage and update Docker containers to ensure efficient application deployment and scaling, as well as streamline the development process. Engage in Agile methodologies, participate in sprint planning …/engineering in programs and contracts of similar scope, type, and complexity. Seven (7) years of software development experience may be substituted in lieu of a degree. Experience with JavaScript Framework (Angular, Vue, React) Full Stack Development experience Willingness to learn modern technologies Working understanding on SQL and/or NoSQL databases Required Clearance: Candidate must have a TS/ More ❯
Employment Type: Permanent
Salary: USD 140,000 Annual
Posted:

Engineering Manager

London, United Kingdom
Hybrid / WFH Options
Viribus
s not essential to have knowledge of everything or the specific tooling listed: Highly experienced and good working knowledge across the following technologies: Languages : .NET Core, C#, NodeJS/JavaScript, Development Environments: Visual Studio, SQL Server management studio, Oracle Developer Databases: MongoDB, ElasticSearch, Oracle, SQL Server Frameworks/Libraries/Tools - solid experience across the following: Deployment: Containerisation tools such … as; Docker, Ansible or Kubernetes Understanding of Azure or Cloud Services Communication: Messaging (RabbitMQ), REST Web Services Workflow: WF GUI: JavaScript Office Automation: VSTO, Aspose.Words, Aspose.Excel Testing/CI : XUnit, MOQ, SpecFlow, TeamCity Deployment: Octopus/Azure DevOps Methodologies: experience of working on Agile projects Good understanding of SOA/Microservices based architectures Good understanding of OOP, SOLID principles and More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Engineer (Java/Springboot) with Security Clearance

Washington, Washington DC, United States
TEKsystems c/o Allegis Group
mission needs. Required Skills and Experience: • Strong development experience (10+ years) required in the following technologies/areas: Java 8 (J2EE development), React, Spring Framework 5+, Spring Boot 2, JavaScript/AJAX, Hibernate 5+, SQL/RDBMS (Oracle and PostgreSQL), RESTful Web Services, Apache Tomcat, Red Hat JBoss, Linux (RHEL, CentOS), Eclipse IDE, Maven build tool, and Git. • Strong experience … required (10+ years) in Database Development, SQL/RDBMS (Oracle and PostgreSQL). • Strong experience required (10+ years) in User Interface (UI) development skills using JavaScript application development. • 10 years of experience with programming and software development including analysis, design, development, implementation, testing, maintenance, quality assurance, troubleshooting, and/or upgrading of software systems. • 10 years of experience troubleshooting and More ❯
Employment Type: Permanent
Salary: USD 195,000 Annual
Posted:

Software Development Manager

Manchester, North West, United Kingdom
ByteHire
your sleeves when critical incidents arise, coordinate responses, and keep projects on track, sometimes requiring occasional overtime. Key Responsibilities: Design and guide scalable, maintainable solutions across frontend (TypeScript/JavaScript), cloud (AWS), and backend systems. Be hands-on with solution architecture, to ensure the product will meet customer requirements Translate business needs into technical tasks, plan sprints, and manage timely … 10+ years in software development, including 2+ in leadership, ideally in a start-up or scale-up. Strong technical background with full-stack experience: Backend: PHP (Laravel), Node.js Frontend: JavaScript/TypeScript (ReactJS preferred), Remix (desirable) Skilled in planning and executing legacy upgrade strategies. Database experience: MySQL Building REST APIs Microservices in the cloud using PHP and Node. AWS: EC2 More ❯
Employment Type: Permanent
Salary: £70,000
Posted:

Senior Software Engineer with Security Clearance

San Diego, California, United States
ASEG Inc
Excellent analytical skills coupled with a strong sense of ownership, urgency and drive • Excellent written and verbal communication skills • Experience in Java • Experience with scripting and other languages (e.g., JavaScript, AJAX, JSON, XML, HTML, CSS, JQuery, and/or PERL) • AWS Solutions Architect, DevOps Engineer and/or SysOps Administrator certifications, Security+ Certification • Domain knowledge of Terraform • Domain knowledge of More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Software Engineer with Security Clearance

Chantilly, Virginia, United States
Gridiron IT Solutions
of the software development lifecycle including scope and work estimation, architecture and design, coding and unit testing. Responsibilities: Contribute to software programming initiatives to support innovation and enhancement, using JavaScript, Java, and/or Python. Execute software system validation and testing methods using Junit and Katalon Create software solutions to leverage automated deployment technologies Develop and deploy prototypes and solutions … Active TS clearance required to start; SCI with CI Poly eligible Candidate must have BS degree with 4 to 6 years of prior relevant experience Experience with coding in JavaScript; additional experience with Java, Python, and/or Bash desired Experience in multiple of the following areas, and a desire to learn the others: Linux OS scripting Database setup and More ❯
Employment Type: Permanent
Salary: USD 150,000 Annual
Posted:

Software Developer with Security Clearance

Chantilly, Virginia, United States
Gridiron IT Solutions
of the software development lifecycle including scope and work estimation, architecture and design, coding and unit testing. Responsibilities: Contribute to software programming initiatives to support innovation and enhancement, using JavaScript, Java, and/or Python. Execute software system validation and testing methods using Junit and Katalon Create software solutions to leverage automated deployment technologies Develop and deploy prototypes and solutions … Active TS clearance required to start; SCI with CI Poly eligible Candidate must have BS degree with 4 to 6 years of prior relevant experience Experience with coding in JavaScript; additional experience with Java, Python, and/or Bash desired Experience in multiple of the following areas, and a desire to learn the others: Linux OS scripting Database setup and More ❯
Employment Type: Permanent
Salary: USD 140,000 Annual
Posted:

.NET Software Development Engineer

United Kingdom
American Express Global Business Travel
SQL Server 2008/12 Jira and/or TFS management software Desirable Skills Source control such as Azure DevOps Repos and GIT REST API techniques ReactJs, Typescript/Javascript Building scalable applications Relational database design ORM and DI frameworks DDD and TDD processes SOLID development principles SPA JavaScript framework Deployment tools and test automation framework Key Attributes/Behaviours More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Java Software Engineer

Reading, Berkshire, UK
Qualient Technology Solutions UK Limited
JSON and XML Experience in Relational Database Management System (e.g. PostgreSQL) Nice to have skills: Knowledge of Workflow/Business Process Management tools Experience with front end technologies: HTML, JavaScript, Jquery, Mustcahe Templates Experience with Performance and Monitoring tools: JMeter, Kibana, Splunk, Dynatrace Experience writing Shell script Basic understanding of Python Good understanding on AWS services (EC2, ECS, EKS, API More ❯
Posted:

Engineering Team Lead (Python) - Ethical Marketplace

London, United Kingdom
Hybrid / WFH Options
Wolf & Badger
engineering leadership role, preferably in a fast-paced startup or scale-up environment. Strong technical expertise in software development, with proficiency in one or more programming languages (e.g., Python, JavaScript, Java, etc.). Solid understanding of modern software development methodologies, tools, and practices, including Agile/Scrum, CI/CD, and DevOps. Demonstrated ability to lead and inspire engineering teams … driving innovation, collaboration, and continuous improvement. Strong technical expertise in software development, with proficiency in one or more programming languages (e.g., Python, JavaScript, Java, etc.). Solid understanding of modern software development methodologies, tools, and practices, including Agile/Scrum, CI/CD, and DevOps. Demonstrated ability to lead and inspire engineering teams, driving innovation, collaboration, and continuous improvement. Excellent More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Lead Software Developer

Bracknell, Berkshire, United Kingdom
Spectrum IT Recruitment
of either C# or React Strong experience with SQL Source control, ideally Git Agile Any experience in the following would be advantageous: Latest versions of .NET AI, Machine Learning JavaScript, TypeScript and associated frameworks Containers, Docker, Kubernetes NoSQL Test tools such as xUnit, Cypress, Selenium, Jest, SoapUI Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation More ❯
Employment Type: Permanent
Salary: £90000 - £100000/annum
Posted: